Envelope



UNITED STATES PATENT OFFICE.

MONTGOMERY H. WATSON, OF DAYTON, OHIO.

ENVELOPE.

SPEGIFIGATION forming' part of Letters Patent No. 276,314, dated April24, 1883,

Application filed November 9, 1882.

To all whom it may concern Be it known that I, MONTGOMERY H. WAT- SON, acitizen of the United States, residing at Dayton, in the county ofMontgomery and State of Ohio, have invented a certain new and usefulImprovement in Envelopes; and .I do hereby declare that the following isa full, clear, and exact description of the invention, which will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to theletters of reference marked thereon, which. form a part of thisspecification.

My invention relates to improvements in envelopes known as the bellowsenvelope, used for filing legal and other papers; and it consists oflike. top and bottom pieces of paper having rims or 'flaps on threesides, which are united by a textile or other suitable fabric which isglued or pasted to said flaps, thus forming an envelope whose top andbottom sides may be in contact,'and expanding with the proportions ofthe contents. h

The construction of the envelope is illustrated by the accompanyingdrawings, in whichi i I Figure lis an oblique view of the improvedenvelope. Fig. 2 is the form of thetop and bottom sheet or blank of thesame. Fig. 3 is an enlarged transverse sectionof the same.

Similar letters refer to similar parts th roughout the several views.

(Model.)

B represents the blank as it is cut out of suitable paper, Fig. 2, andhas a semicircular notch in the right end, and the corners at the leftend are clipped, and the edges are creased for folding, as indicated bydotted lines at D. Two blanks are placed on a quadrangular block, theedges are bent down upon the same, and the muslin strip (3 is glued onpasted onto these edges or flaps T. The strip may be of any textile orother suitable material, and is made to adhere to the flaps on threesides of the envelope. For purposes of commerce, the top and bottom arepressed snugly down on the flexible sides, and in usethey expand withthe proportions of their contents.

tllaving fully explained my invention. what I cla m, and desire tosecure by Letters Patent, 1s-- "An envelope formed of two identicalblank-s having folded sideand end portions, T, united by a suitableflexible strip, 0, substantially as shown and described.

In testimony that I claim the foreging as my own I atfix my signature inpresence of two witnesses.

MONTGOMERY H. WATSON.

Witnesses:

B. PIGKERING, JoHN HANITCH.

